Transverse member for a drive belt for a continuously variable transmission
AssigneeRobert Bosch GmbH
InventorArjen Brandsma
Life of this patent
Estimating the term…
Abstract
A transverse member (1) for a drive belt for a continuously variable transmission with a base part (10) and two pillar parts (11). On either side thereof, the transverse member is provided with a pulley contact surface (12) for contacting pulleys of the transmission. The pulley contact surfaces (12) are each provided in two sections (13, 14) with a surface part (15) of the transverse member (1) provided there between that does not arrive in contact with the transmission pulleys, whereof a first section (13) is provided at least partly in the base part (10) and whereof a second section (14) is wholly provided in a respective pillar part (11).
Claims7
A transverse member (1) for a drive belt (50) to operate with an endless carrier (8), the transverse member (1) comprising:
- a base part (10);
- and
- two pillar parts (11),
- wherein said pillar parts (11) respectively extend in height direction from respective sides of the base part (10), and
- wherein said transverse member (1) on both sides thereof is provided with a respective contact surface (12) for arriving in friction contact with pulleys (101, 102) of a transmission (100) that is provided with the drive belt (50),
- wherein both contact surfaces (12) of the transverse member (1) are each individually divided in a height direction into two distinct sections (13, 14) separated by a lower lying surface (15) of the transverse member (1),
- wherein said lower lying surface (15) does not arrive in contact with the pulleys (101, 102) in the transmission (100),
- wherein a first (13) of said two sections (13, 14) of both contact surfaces (12) is located in the base part (10) of the transverse member (1), extending over a full dimension thereof in the height direction, which first (13) of said two sections (13, 14) of both contact surfaces (12) is provided with a surface profile with peaks and valleys, whereof only the peaks arrive in contact with the pulleys (101, 102) in the transmission (100),
- wherein a second (14) of said two sections (13, 14) of both contact surfaces (12) is wholly provided in a respective pillar part (11) of the transverse member (1),
- wherein a dimension in the height direction of each of the lower lying surfaces (15) of the transverse member (1) is larger than a dimension of the valleys of the surface profile by a factor of at least 2, and
- wherein the second (14) of said two sections (13, 14) of both contact surfaces (12) are each provided in a single point of contact with the pulleys (101, 102) in the transmission (100).
A transverse member (1) for a drive belt (50) to operate with an endless carrier (8), the transverse member (1) comprising:
- a base part (10);
- and
- two pillar parts (11),
- wherein said pillar parts (11) respectively extend in height direction from respective sides of the base part (10), and
- wherein said transverse member (1) on each of opposing sides thereof is provided with a contact surface (12) configured to come into friction contact with pulleys (101, 102) of a transmission (100),
- wherein each one of the contact surfaces (12) consists of two sections (13, 14) that are separated from one another in a height direction by a lower lying surface (15) that does not come into contact with the pulleys (101, 102) of the transmission (100),
- wherein, for both contact surfaces, a first (13) of the two sections (13, 14) is located in the base part (10) of the transverse member (1) and extends over a full dimension thereof in the height direction, said first (13) of the two sections (13, 14) provided with a surface profile with peaks and valleys whereof only the peaks arrive in contact with the pulleys (101, 102) of the transmission (100),
- wherein, for both contact surfaces, only a second (14) of the two sections (13, 14) is located entirely in a respective pillar part (11) of the transverse member (1),
- wherein a dimension in the height direction of the lower lying surfaces (15) is larger than a dimension of the valleys of the surface profile by a factor of at least 2, and
- wherein the second (14) of the two sections (13, 14) presents only a single point of contact with the pulleys (101, 102) in the transmission (100).
Dependencies are inferred from the claim text.